CVE-2023-36520 MEDIUM

CVE-2023-36520: WordPress Editorial Calendar Plugin <= 3.7.12 is vulnerable to Insecure Direct Object References (IDOR)

Vendor Marketingfire
Product Editorial Calendar
Weakness CWE-639 · IDOR
Published December 20, 2023
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

5.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

What the vulnerability does

01Description

Authorization Bypass Through User-Controlled Key vulnerability in MarketingFire Editorial Calendar.This issue affects Editorial Calendar: from n/a through 3.7.12.

Explanation of Vulnerability in Simple Terms

02Summary

MarketingFire Editorial Calendar versions up to 3.7.12 contain an authorization flaw that allows authenticated users to modify data they should not have access to. An attacker with low-level account privileges can alter or corrupt calendar entries and related content. The vulnerability requires valid login credentials but no additional user interaction.

What an attacker can do

03Attacker Capabilities

Modify or delete calendar entries and data belonging to other users or restricted areas.

Potential impact on your site

04Site Impact

Authenticated users can tamper with editorial calendar data, disrupting content planning and publishing workflows.

Conditions required to exploit

05Prerequisites

Attacker must have a valid low-privilege account on the site.

Key dates

06Disclosure timeline

December 20, 2023 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

CVE-2026-12400 FlowForms <= 1.1.1 - Authenticated (Contributor+) Insecure Direct Object Reference to Arbitrary Form Modification via REST API '/flowforms/v1/forms/{id}' Endpoints CVE-2026-5060 MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.7.14 - Insecure Direct Object Reference to Authenticated (Instructor+) Arbitrary Attachment Deletion CVE-2026-40792 WordPress KiviCare plugin <= 4.2.1 - Insecure Direct Object References (IDOR) vulnerability CVE-2026-3173 Meta Field Block <= 1.5.1 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary User Meta Exposure CVE-2026-8611 Klamra Paycal for Aspaclaria <= 1.1.4 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Information Exposure via 'invoice_id' Parameter